Closure-fastening device.



PATENTED FEB. 28, 1905.

' F. GANFIELD.

CLOSURE FASTENING DEVICE.

APPLICATION FILED MAY 31, 1904.

Nah: 783,994.

Patented February 28, 190%.

PATENT are.

FRANK UANFl ELD, OF DENVER, COLORADO, ASSI GNOh, BY DIRECT AND MESNEASSIGNMENTS, TO JOHN ALEXANDER MA(,-l)()NALl) AND l-IOWV- ARI) (I.BONSALL, OF DENVER, COLORADO.

mesons-FASTENING neuron.

SPECIFICATION forming part of Letters Patent No. 783,994, dated.February 28, 1905.

Application filed May 31.1904. Serial No. 210,593.

To It /1/0717, (it In/(L71 concern:

Be it known that I, FRANK OANFIELD, a citizen of the United States,residing in the city and county of Denver and State of Colorado,

5 have invented certain new and useful 1m provements inOlosure-Fastening Devices; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it ap- Io pertains to make and usethe same, reference being had to the accompanyingdrawings, and to theletters of reference marked thereon, which form a part of thisspecification.

My invention relates to improvements in a I 5 fastening device for theclosures of receptacles, as jars or other receptacles adapted to containsubstances which it is desired to seal from contact with the atmosphere.It is also necessary that these receptacles should be both air andliquid tight.

My object is to provide a device of this class which shall be simpleinconstruction, economical in cost, reliable, durable, and efiicient inuse; and to these ends the invention consists 2 5 of the featureshereinafter described and claimed, all of which will be fully understoodby reference to the accompanying drawings, in which is illustrated anembodiment thereof.

In the drawings, Figure 1 is a sideelevation 3 of a jar the cap of whichis held in place by my improved fastening device, the latter be ing inthe locked position. Fig. .2 is a section of the jar, the cam-leverbeing shown in lon gitiiidinal section and in the unlocked position.

- Fig. 3 is a top or plan view of the device shown in Fig. 1 and withthe parts in the same position. Fig. L is a top view of the'device,showing the cam-lever in the unlocked position. Fig. 5 is a sectiontaken on the line 4 5 5. Fig. 1, viewed in the direction of the arrow.The same reference characters indicate the same parts in all the views.

Let A designate a jar or other suitable receptacle, to which is applieda cap A, resting on a packing-washer A. As shown in the drawings, thecap A is provided with a specially-prepared wearing-plate A the saidplate being provided with a depending threaded shank A", passing throughan openingin the top of the cap and protruding into the hollow 5 of thecap. This protruding extremity is threaded, and to it is applied a nutA" for holding the plate in place. Surrounding the threaded shank andengaging the inner surface of the cap is a rubber washer A", and betweenthis rubber washer and the nut is a metal washer A.

In the opposite sides of the wall of the receptacie A are formedrecesses A, into which are bent the extremities 13' of a fastcmingbailB, formed from asingle piece of wire and extending above the cap. in thecenter of this wire bail is formed an eye B, through which is passed apin B, upon which a cam-lever O is fulcrumed. This lever is cut away, as5 shown at O, to make room for the bail when the lever is thrown to theunlocked position. as shown in Fig. 2. The arm of the camlever isprovided with a central slot (l Projecting from the arm on oppositesides of this 7 slot are two curved lips O". The central portions ofthose lips approach each other, and they bend outwardly in bothdirections. 'llhey are sufficiently close together that when thecam-lever is forced downwardly upon the bail the latter spreads the lipsapart until the bail is passed between them, after which the lips closebelow the bail and lock the lever securely in place. The lips arepractically rigid; but the split or slot (l of the lever al 30 lows thetwo parts of the lever sullicient s 'iring or yielding capacity topermit the lips to open and close in the pm'forimmce of their function.As shown in the drawings, the slot O extends from the free extremity ofthe le- 5 ver inwardly toward its cam estremity a suitable distance topermit the performance of the aforesaid function.

From the foregoing description the use and operation of my improveddevice will be read- 9 ily understood. Assuming that the parts areassembled and that the cam-lever is in the unlocked position, or thatshown in Figs. 2 and l of the drawings, it is only necessary to throwthe cam-lever downwardly to the posi tion shown in Figs. 1 and 3, whenthe cam of the lever acts on the wearing-plate to force of the slot, thesaid lips being adapted to the cap down tightly-forming an air-tight andwater-proof joint between the cam and the body of the jar or receptacle.At the same time the lips (1 come in contact with the bail, and spreadapart by virtue of the split in the arm of the lever sufliciently topermit the bail to i enter, after which the lips close beneath the bailand hold the lever in the locked position and perfectly secure againstaccidental displacement.

Having thus described my invention, what 1 claim is 1. In a device ofthe class described, the combination with a receptacle and a captherefor, of a bail pivotally connected with the wall of the receptacle,a cam-lever fulcrumed on the bail and whose cam portion is adapted toengage the top of the cap to hold the latter securely in place when thelever is thrown to the locking position, the lever having a pair ofyielding lips adapted to pass on opposite sides of the bail and lock thelever in the closed position, substantially as described.

2. The combination with a receptacle and a cap therefor, of a bailconnected With the receptacle and adapted to pass upwardly over the cap,a cam-lever fulcrumed on the bail and having its-arm slotted andprovided with lips projecting from the arm on opposite sides straddlethe bail and lock the lever in the closed position, substantially asdescribed.

3. The combination with a suitable jar or other receptacle, and a captherefor, of a bail connected with the body of the receptacle andadapted to extend upwardly over the cap, a cam-lever fulcrumed on thebail, the arm of the lever being split from its free extremity inwardlya suitable distance, and curved lips projecting from the lever onopposite sides of the slot, the two lips being adapted to engage thebail and hold the lever in the locked position as set forth.

4. The combination with a receptacle, of a cap, a wearing-plate appliedto the top of the cap and having a threaded shank extending therethroughand protruding from the interior thereof, fastening means applied to theshank on the inside to hold the wearing-plate in po sition, a bailextending over the top of the cap, and a cam-lever fulcrumed on the bailand adapted to engage the wearing-plate, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

, FRANK GANFIELD.

Vitnesses:

DENA NELSON, A. J. OBRIEN.

